fix(web): 自动刷新保留 K 线视窗；威科夫与图表增量更新

自动刷新改用 tail update 与 scrollToPosition 恢复视窗，避免 setData 后跳到最右；拆分 chart_tv 模块并扩展 analyze/recent API。同步威科夫分析、pipeline 增量构建及相关策略与配置。

Co-authored-by: Cursor <cursoragent@cursor.com>

crypto_wyckoff/scheduler.py

@@ -0,0 +1,127 @@
+"""Background tip + scan scheduler for crypto wyckoff (all enabled combos)."""
+
+from __future__ import annotations
+
+import logging
+import threading
+from datetime import datetime, timezone
+
+from crypto_wyckoff.combos import all_tfs_for_combos, list_combos
+from crypto_wyckoff.io import (
+    backfill_symbol,
+    bar_count,
+    fetch_symbols_from_provider,
+    tip_update_symbol,
+)
+from crypto_wyckoff.pipeline import analyze_and_store
+
+logger = logging.getLogger(__name__)
+
+_thread: threading.Thread | None = None
+_stop = threading.Event()
+_status: dict = {
+    "running": False,
+    "last_tick_at": None,
+    "last_error": None,
+    "symbols_total": 0,
+    "symbols_scanned": 0,
+    "tick_interval_sec": 60,
+    "backfill_done": False,
+}
+_status_lock = threading.Lock()
+
+
+def _set(**kwargs):
+    with _status_lock:
+        _status.update(kwargs)
+
+
+def get_status() -> dict:
+    with _status_lock:
+        return dict(_status)
+
+
+def run_tick(max_symbols: int | None = None, force_rescan: bool = False) -> dict:
+    """One cycle: refresh symbols, tip-update, analyze each combo."""
+    symbols = fetch_symbols_from_provider()
+    if max_symbols:
+        symbols = symbols[:max_symbols]
+    combos = list_combos()
+    tfs = all_tfs_for_combos(combos)
+    _set(symbols_total=len(symbols), running=True, last_error=None)
+    scanned = 0
+    errors = 0
+    changed_n = 0
+
+    for i, sym in enumerate(symbols):
+        try:
+            # Prefer low-TF of first combo for "enough history" gate
+            low0 = combos[0]["low"] if combos else "1d"
+            if bar_count(sym, low0) < 40:
+                backfill_symbol(sym, tfs)
+            tip_changed = tip_update_symbol(sym, tfs)
+            if tip_changed:
+                changed_n += 1
+            if force_rescan or tip_changed:
+                for combo in combos:
+                    row = analyze_and_store(sym, combo_id=combo["id"])
+                    if row:
+                        scanned += 1
+        except Exception as e:
+            errors += 1
+            if errors <= 5:
+                logger.warning("tick %s: %s", sym, e)
+            _set(last_error=str(e))
+        if (i + 1) % 25 == 0:
+            _set(symbols_scanned=scanned)
+            logger.info("wyckoff tick progress %s/%s scanned=%s", i + 1, len(symbols), scanned)
+
+    _set(
+        running=False,
+        symbols_scanned=scanned,
+        last_tick_at=datetime.now(timezone.utc).isoformat(),
+        backfill_done=True,
+    )
+    return {
+        "symbols": len(symbols),
+        "scanned": scanned,
+        "changed_tips": changed_n,
+        "errors": errors,
+        "combos": [c["id"] for c in combos],
+        "tfs": tfs,
+    }
+
+
+def _loop(interval: int, max_symbols: int | None):
+    try:
+        run_tick(max_symbols=max_symbols, force_rescan=True)
+    except Exception as e:
+        logger.exception("initial tick failed: %s", e)
+        _set(last_error=str(e), running=False)
+    while not _stop.wait(interval):
+        try:
+            # Tip-driven: only force full rescan when tips change is handled inside
+            run_tick(max_symbols=max_symbols, force_rescan=False)
+        except Exception as e:
+            logger.exception("tick failed: %s", e)
+            _set(last_error=str(e), running=False)
+
+
+def start_scheduler(interval_sec: int = 60, max_symbols: int | None = None) -> None:
+    global _thread
+    if _thread and _thread.is_alive():
+        return
+    _stop.clear()
+    _set(tick_interval_sec=interval_sec)
+    _thread = threading.Thread(
+        target=_loop,
+        args=(interval_sec, max_symbols),
+        name="crypto-wyckoff-scheduler",
+        daemon=True,
+    )
+    _thread.start()
+    logger.info("crypto wyckoff scheduler started interval=%ss", interval_sec)
+
+
+def stop_scheduler() -> None:
+    _stop.set()